The official announcement came through facebook less than hour ago. He is smart enough to realize that he has to build a grassroots movement, as Obama did. The face of presidential elections has been forever changed.
If you are interested he is doing a TeleTown Hall at 7:30 tonight. If you want to sign up go here.
There are things that I like about Pawlenty. But he really isn't all that exciting. But Stephen Hayes (if I remember correctly) said the country may be ready for the Anti Obama. He is that.
Here is a video that Fox News did a few months back on possible contenders.